82 results for “duct”
The logarithm of a product equals the sum of logarithms.
Multiplying powers with the same base adds the exponents.
The log of a product is the sum of the logs.
The absolute value of a product equals the product of absolute values.
The nth root of the product of n numbers.
Product-to-sum identity.
Sum-to-product identity.
Derivative of a product of two functions.
Integration technique from the product rule.
Product of all positive integers up to n.
The nth root of the product of n values.
Scalar product of two vectors.
Magnitude of the vector perpendicular to two vectors.
Sum of componentwise products of two vectors.
Angle from the dot product and magnitudes.
Volume of the parallelepiped spanned by three vectors.
The transpose of a product reverses the order.
Product of two 2×2 matrices.
The determinant of a product is the product of determinants.
A changing magnetic flux induces an electromotive force.
Induced current opposes the change in flux that produced it.
A changing magnetic flux induces an EMF.
Heat conducted through a slab over time.
Force on a current-carrying conductor.
Induced EMF from changing magnetic flux.
EMF from a conductor moving through a field.
Energy stored in a magnetic field.
Opposition of an inductor to AC.
Time constant of an inductor-resistor circuit.
Average velocity of charge carriers.
Energy stored in an inductor magnetic field.
Ratio of product to reactant concentrations at equilibrium.
Heat absorbed or released at constant pressure.
Self-ionization constant of water at 25°C.
Energy stored by producers after respiration.
One unit converts 1 µmol of substrate per minute.
Energy available to an ecosystem after respiration.
Heat conducted through a material.
The “bottom line” — total earnings after all expenses, interest and taxes are deducted from revenue.
Total income from sales before any costs are deducted.
Output adjusted for inflation, so growth reflects real production, not rising prices.
Gross domestic product by spending.
Price per single unit to compare value between products.
Water consumed per unit of product or service.
Reduction in entropy achieved by splitting a node on a feature.
Finds directions of maximum variance via eigenvectors of the covariance matrix.
Lets each token weigh and aggregate information from all others — the heart of Transformers.
Amount of data "in flight" on a network link at any instant.
Milliseconds per beat, used to sync echo/delay effects to a song.
Output torque after gear reduction, allowing for efficiency.
Production per unit area of land.
Fertiliser product needed to supply a target nutrient rate.
How much raw product to buy to end up with the edible amount you need.
Speed of air in a duct from flow rate and cross-section.
How fully productive capacity is being used.
Product of on-time, complete, damage-free and correctly documented rates.
Reduction in a steel pipe string's weight when submerged in drilling mud.
Falling production rate of a well over time at a constant decline rate.
Volume of gas produced per barrel of oil.
Amount of data 'in flight' on a link, setting the ideal window size.
Percentage of customers who stop using a product in a given period.
Average number of secondary infections produced by one infected individual in a fully susceptible population.
Actual average infections per case when part of the population is already immune.
In a closed system, matter is neither created nor destroyed — the total mass before a reaction equals the total mass after.
The heat generated by an electric current in a conductor is proportional to the square of the current, the resistance and the time.
For metals, the ratio of thermal conductivity to electrical conductivity is proportional to absolute temperature, with a nearly universal constant.
a² − b² = (a + b)(a − b). Turns a subtraction of squares into an easy product.
Multiply two binomials by combining First, Outer, Inner, Last terms.
Two numbers equally spaced around a middle value m multiply to m² − d², using the difference of squares.
For any whole number, the product of the number before it, itself and the one after, plus the number, equals its cube.
Verify any multiplication by checking digital roots. The digital root of the product must equal the digital root of (digital root of factor 1 × digital root of factor 2).
Factor quadratics instantly: for x² − (a+b)x + ab = 0, find two numbers whose sum equals the middle coefficient and whose product equals the constant term.
If you know the roots r₁ and r₂, the quadratic is x² − (r₁+r₂)x + r₁×r₂ = 0. Sum gives the middle term, product gives the constant.
When multiplying, double one factor and halve the other to reach an easier pair — the product stays the same.
a² + 2ab + b² = (a + b)². If the first and last terms are squares and the middle is twice their roots’ product, it factors cleanly.